Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7739886 | Journal of Power Sources | 2013 | 6 Pages |
Abstract
Co3O4 nanowire arrays freely standing on Ti foil (Co3O4/Ti) are prepared via a template-free growth method. Pd nanoparticles are electrochemically deposited by cyclic voltammetry method on Co3O4 nanowires to obtain a nanocomposite electrode (Pd@Co3O4/Ti). The morphology and phase structure of the Pd@Co3O4/Ti electrode are characterized by scanning electron microscope and X-ray diffraction spectrometer. The catalytic activity of H2O2 electroreduction on the Pd@Co3O4/Ti electrode in alkaline medium is evaluated by means of linear scan voltammetry and chronoamperometry. The Pd@Co3O4/Ti electrode exhibits high performance and good stability to H2O2 electroreduction with a current density of 145.8 mA cmâ2 at â0.4 V in 3.0 mol dmâ3 KOH and 0.4 mol dmâ3 H2O2 electrolyte, which outperforms the bare Co3O4 nanowire arrays without Pd doping.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Kui Cheng, Fan Yang, Yang Xu, Lin Cheng, Yanyan Bao, Dianxue Cao, Guiling Wang,